ZHCSMJ1 October   2021 LM61430-Q1

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Characteristics
    7. 7.7 Systems Characteristics
    8. 7.8 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  EN/SYNC Uses for Enable and VIN UVLO
      2. 8.3.2  EN/SYNC Pin Uses for Synchronization
      3. 8.3.3  Clock Locking
      4. 8.3.4  Adjustable Switching Frequency
      5. 8.3.5  PGOOD Output Operation
      6. 8.3.6  Internal LDO, VCC UVLO, and BIAS Input
      7. 8.3.7  Bootstrap Voltage and VCBOOT-UVLO (CBOOT Pin)
      8. 8.3.8  Adjustable SW Node Slew Rate
      9. 8.3.9  Spread Spectrum
      10. 8.3.10 Soft Start and Recovery From Dropout
      11. 8.3.11 Output Voltage Setting
      12. 8.3.12 Overcurrent and Short Circuit Protection
      13. 8.3.13 Thermal Shutdown
      14. 8.3.14 Input Supply Current
    4. 8.4 Device Functional Modes
      1. 8.4.1 Shutdown Mode
      2. 8.4.2 Standby Mode
      3. 8.4.3 Active Mode
        1. 8.4.3.1 Auto Mode - Light-Load Operation
          1. 8.4.3.1.1 Diode Emulation
          2. 8.4.3.1.2 Frequency Reduction
        2. 8.4.3.2 FPWM Mode - Light-Load Operation
          1. 8.4.3.2.1 CCM Mode
        3. 8.4.3.3 Minimum On Time (High Input Voltage) Operation
        4. 8.4.3.4 Dropout
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1  Choosing the Switching Frequency
        2. 9.2.2.2  Setting the Output Voltage
        3. 9.2.2.3  Inductor Selection
        4. 9.2.2.4  Output Capacitor Selection
        5. 9.2.2.5  Input Capacitor Selection
        6. 9.2.2.6  BOOT Capacitor
        7. 9.2.2.7  BOOT Resistor
        8. 9.2.2.8  VCC
        9. 9.2.2.9  BIAS
        10. 9.2.2.10 CFF and RFF Selection
        11. 9.2.2.11 External UVLO
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Ground and Thermal Considerations
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 第三方米6体育平台手机版_好二三四免责声明
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 接收文档更新通知
    4. 12.4 支持资源
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 术语表
  13. 13Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

9.2.3 Application Curves

Unless otherwise specified, the following conditions apply: VIN = 13.5 V, TA = 25°C. The circuit is shown in Figure 9-1, with the appropriate BOM from Table 9-4.

Unless otherwise specified, the following conditions apply: VIN = 13.5 V, TA = 25°C. The circuit is shown in Figure 9-1, with the appropriate BOM from Table 9-4.

VOUT = 3.3 V FSW = 400 kHz Auto mode
Figure 9-4 LM61430-Q1 Efficiency .

Unless otherwise specified, the following conditions apply: VIN = 13.5 V, TA = 25°C. The circuit is shown in Figure 9-1, with the appropriate BOM from Table 9-4.

VOUT = 3.3 V FSW = 2100 kHz Auto mode
Figure 9-6 LM61430-Q1 Efficiency
VOUT = 5 V FSW = 400 kHz Auto mode
Figure 9-8 LM61430-Q1 Efficiency
VOUT = 5 V FSW = 2100 kHz Auto mode
Figure 9-10 LM61430-Q1 Efficiency
VOUT = 3.3 V FSW = 400 kHz Auto mode
Figure 9-12 LM61430-Q1 Load and Line Regulation
VOUT = 3.3 V FSW = 2100 kHz Auto mode
Figure 9-14 LM614630-Q1 Load and Line Regulation
VOUT = 5 V FSW = 400 kHz Auto mode
Figure 9-16 LM61430-Q1 Load and Line Regulation
VOUT = 5 V FSW = 2100 kHz Auto mode
Figure 9-18 LM61430-Q1 Load and Line Regulation
GUID-F5FC89BE-CDE4-4E4E-ADAA-901274226A36-low.gif
VOUT = 3.3 V FSW = 400 kHz Auto mode
Figure 9-20 LM61430-Q1 Dropout Curve
GUID-8034D850-B774-4A9C-BF6E-745571038566-low.gif
VOUT = 5 V FSW = 400 kHz Auto mode
Figure 9-22 LM61430-Q1 Dropout Curve
GUID-C26407EB-4BFD-44D9-BFA5-97ECE49D5A4F-low.gif
VOUT = 3.3 V FSW = 400 kHz Auto mode
Figure 9-24 LM61430-Q1 Frequency Dropout Curve
GUID-540C72CE-05A4-4EFE-A1C5-29019D7C0A65-low.gif
VOUT = 5 V FSW = 400 kHz Auto mode
Figure 9-26 LM61430-Q1 Frequency Dropout Curve
GUID-20210831-SS0I-5RV3-JWPM-P7FHL2RTS5PZ-low.png
VOUT = 5 V FSW = 2100 kHz Auto mode
IOUT = 100 mA VIN = 13.5 V
Figure 9-28 LM61430-Q1 Switching Waveform and VOUT Ripple
GUID-20210901-SS0I-68JK-979B-Z3T6NW2XKCM0-low.png
VOUT = 5 V FSW = 2100 kHz Auto mode
IOUT = 3 A VIN = 13.5 V
Figure 9-30 LM61430-Q1 Switching Waveform and VOUT ripple
GUID-20210831-SS0I-QMKG-JHHX-QTRMCRQXF9XF-low.png
VOUT = 5 V FSW = 2100 kHz Auto mode
IOUT = 100 mA VIN = 13.5 V
Figure 9-32 LM61430-Q1 Start-up with 100-mA Load
GUID-20210831-SS0I-MN68-P2M0-GS1HJTVW4X1Z-low.png
VOUT = 5 V FSW = 2100 kHz FPWM mode
IOUT = 3 A to Short Circuit VIN = 13.5 V
Figure 9-34 LM61430-Q1 Short Circuit Protection
GUID-20210831-SS0I-KLDJ-LCWX-J38SS3KWPS6J-low.png
VOUT = 5 V FSW = 2100 kHz FPWM mode
IOUT = Short Circuit VIN = 13.5 V
Figure 9-36 LM61430-Q1 Short Circuit Performance
FSW = 400 kHz VOUT = 5 V IOUT = 5 A
Frequency tested: 150 kHz to 30 MHz
Tested on 6-A variant with LM61460EVM
Figure 9-38 Conducted EMI Versus CISPR25 Limits (Yellow: Peak Signal, Blue: Average Signal)
VOUT = 5 V FSW = 400 kHz IOUT = 5 A
Frequency tested: 150 kHz to 30 MHz
Tested on 6-A variant with LM61460EVM
Figure 9-40 Radiated EMI Rod Versus CISPR25 Limits
VOUT = 5 V FSW = 400 kHz IOUT = 5 A
Frequency tested: 30 MHz to 300 MHz
Tested on 6-A variant with LM61460EVM
Figure 9-42 Radiated EMI Bicon Horizontal Versus CISPR25 Limits
VOUT = 5 V FSW = 400 kHz IOUT = 5 A
Frequency tested: 300 MHz to 1 GHz
Tested on 6-A variant with LM61460EVM
Figure 9-44 Radiated EMI Log Horizontal Versus CISPR25 Limits
FSW = 2100 kHz VOUT = 5 V IOUT = 5 A
Frequency tested: 150 kHz to 30 MHz
Tested on 6-A variant with LM61460EVM
Figure 9-46 Conducted EMI Versus CISPR25 Limits (Yellow: Peak Signal, Blue: Average Signal)
VOUT = 3.3 V FSW = 400 kHz FPWM mode
Figure 9-5 LM61430-Q1 Efficiency
VOUT = 3.3 V FSW = 2100 kHz FPWM mode
Figure 9-7 LM61430-Q1 Efficiency
VOUT = 5 V FSW = 400 kHz FPWM mode
Figure 9-9 LM61430-Q1 Efficiency
VOUT = 5 V FSW = 2100 kHz FPWM mode
Figure 9-11 LM61430-Q1 Efficiency
VOUT = 3.3 V FSW = 400 kHz FPWM mode
Figure 9-13 LM61430-Q1 Load and Line Regulation
VOUT = 3.3 V FSW = 2100 kHz FPWM mode
Figure 9-15 LM61430-Q1 Load and Line Regulation
VOUT = 5 V FSW = 400 kHz FPWM mode
Figure 9-17 LM61430-Q1 Efficiency
VOUT = 5 V FSW = 2100 kHz FPWM mode
Figure 9-19 LM61430-Q1 Load and Line Regulation
GUID-F128C873-7B06-49EA-99CC-1277DBC3037D-low.gif
VOUT = 3.3 V FSW = 2100 kHz Auto mode
Figure 9-21 LM61430-Q1 Dropout Curve
GUID-5DC76424-E923-4774-90AF-0F17E08C7632-low.gif
VOUT = 5 V FSW = 2100 kHz Auto mode
Figure 9-23 LM61430-Q1 Dropout Curve
GUID-BC81559A-4D84-4EB6-8F12-FEF5DC4587DB-low.gif
VOUT = 3.3 V FSW = 2100 kHz Auto mode
Figure 9-25 LM61430-Q1 Frequency Dropout Curve
GUID-61F97DFF-9A98-452D-95E0-9D23469591A2-low.gif
VOUT = 5 V FSW = 2100 kHz Auto mode
Figure 9-27 LM61430-Q1 Frequency Dropout Curve
GUID-20210831-SS0I-CHBF-CBGC-VPS9QNHGL0KX-low.png
VOUT = 5 V FSW = 2100 kHz FPWM mode
IOUT = 100 mA VIN = 13.5 V
Figure 9-29 LM61430-Q1 Switching Waveform and VOUT Ripple
GUID-20210831-SS0I-SFF4-DB0K-19GKZ1DXNR37-low.png
VOUT = 5 V FSW = 2100 kHz FPWM mode
IOUT = 1.5 A to 3 A to 0 A VIN = 13.5 V TR = TF = 6 µs
Figure 9-31 LM61430-Q1 Load Transient
GUID-20210831-SS0I-QB4G-FKWJ-KLKK9FDHHCGS-low.png
VOUT = 5 V FSW = 2100 kHz FPWM mode
IOUT = 3 A VIN = 13.5 V
Figure 9-33 LM61430-Q1 Start-up with 3 A
GUID-20210831-SS0I-ZZWX-LHQV-WZMMQNXXBK4F-low.png
VOUT = 5 V FSW = 2100 kHz FPWM mode
IOUT = Short Circuit to 3 A VIN = 13.5 V
Figure 9-35 LM61430-Q1 Short Circuit Recovery
 
 
 
 
 
FSW = 400 kHz
Figure 9-37 Recommended Input EMI Filter
VOUT = 5 V FSW = 400 kHz IOUT = 5 A
Frequency tested: 30 MHz to 108 MHz
Tested on 6-A variant with LM61460EVM
Figure 9-39 Conducted EMI Versus CISPR25 Limits (Yellow: Peak Signal, Blue: Average Signal)
VOUT = 5 V FSW = 400 kHz IOUT = 5 A
Frequency tested: 30 MHz to 300 MHz
Tested on 6-A variant with LM61460EVM
Figure 9-41 Radiated EMI Bicon Vertical Versus CISPR25 Limits
VOUT = 5 V FSW = 400 kHz IOUT = 5 A
Frequency tested: 300 MHz to 1 GHz
Tested on 6-A variant with LM61460EVM
Figure 9-43 Radiated EMI Log Vertical Versus CISPR25 Limits
 
 
 
FSW = 2100 kHz Note: Measurements taken with LM61460EVM
Figure 9-45 Recommended Input EMI Filter
FSW = 2100 kHz VOUT = 5 V IOUT = 5 A
Frequency tested: 30 MHz to 108 MHz
Tested on 6-A variant with LM61460EVM
Figure 9-47 Conducted EMI Versus CISPR25 Limits (Yellow: Peak Signal, Blue: Average Signal)
Table 9-4 BOM for Typical Application Curves
VOUT FREQUENCY RFBB RT COUT CIN + CHF L
3.3 V 400 kHz 100 kΩ 43.2 kΩ 6 x 22 µF 2 x 4.7 µF + 2 x 100 nF 10 µH (XHMI6060)
3.3 V 2100 kHz 100 kΩ 43.2 kΩ 3 x 22 µF 2 x 4.7 µF + 2 x 100 nF 1.5 µH (XEL5030)
5 V 400 kHz 100 kΩ 24.9 kΩ 4 x 22 µF 2 x 4.7 µF + 2 x 100 nF 10 µH (XHMI6060)
5 V 2100 kHz 100 kΩ 24.9 kΩ 3 x 22 µF 2 x 4.7 µF + 2 x 100 nF 1.5 µH (74438356015)
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